Patent US2928337A successfully refreshed from Google Patents.
US2928337A
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US
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Automatic mail cancelling apparatus
Assignee: Emerson Radio Corp
•
Filing: 1957-12-05
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Granted: 1960-03-15
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Expires: 1977-12-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Philip Pollak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:49
CPC Classifications
B; B07; B07C; B07C3/00; B07C3/18; Y; Y10; Y10S; Y10S209/00; Y10S209/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1217092A
Cited
US2075630A
Cited
US2320338A
Cited
US2609928A
Cited
GB675556A
Cited
US2719629A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |